Battery Capacity Test

To perform this test, use a high rate discharge tester, Rotunda Alternator, Regulator, Battery and Starter Tester (ARBST) 010-00725 or equivalent, in conjunction with Rotunda 73 Digital Multimeter 105-R0051 or equivalent.

1. Turn the ARBST on. Connect the positive test lead to the positive battery post and the negative test lead to the negative battery post.
2. Initiate test by pushing the battery test button on the ARBST unit. The test will be performed automatically.
3. If battery tests good, it has a good output capacity and will readily accept a charge.
4. If battery tests bad, it is defective and must be replaced
5. If battery test results indicate charge and retest, charge the battery to capacity and repeat procedure.
6. If the battery is found to be discharged only, check for a loose drive belt, loose electrical connection, charging system performance, and perform Drain Testing. [1][2]Drain Test